Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
English
exequy
←
English
exequies
(back-formation)
←
Middle English
exequies
(inherited)
←
Old French
exequies
(derived)
←
Latin
exsequiās
(derived)
←
Latin
exsequiae
(mention)
→
English
exequious
(suffix)